Transcutaneous electrical nerve stimulation unit



FIG. 1 is a front side perspective view of a transcutaneous electrical nerve stimulation unit showing my new design;

FIG. 2 is a rear side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line shown in the drawings is for the purpose of illustrating portions of the transcutaneous electrical nerve stimulation unit and forms no part of the claimed design. 

CLAIM The ornamental design for a transcutaneous electrical nerve stimulation unit, as shown and described. 